Move talk/examples/* to webrtc/examples.

talk/examples/android/README

-This directory contains an example Android client for https://apprtc.appspot.com
-
-Prerequisites:
-- "Getting the code" on http://www.webrtc.org/native-code/android
-- Set up webrtc-related GYP variables:
-  export GYP_DEFINES="build_with_libjingle=1 build_with_chromium=0 libjingle_java=1
-  OS=android $GYP_DEFINES"
-  To cause WEBRTC_LOGGING to emit to Android's logcat, add enable_tracing=1 to
-  the $GYP_DEFINES above.
-- When targeting both desktop & android, make sure to use a different output_dir
-  value in $GYP_GENERATOR_FLAGS - for example
-  export GYP_GENERATOR_FLAGS="$GYP_GENERATOR_FLAGS output_dir=out_android"
-  or you'll likely end up with mismatched ARM & x86 output artifacts.
-  If you use an output_dir other than out/ make sure to modify the command-lines
-  below appropriately.
-- Finally, run "gclient runhooks" to generate Android-targeting .ninja files.
-
-Example of building & using the app:
-
-cd <path/to/webrtc>/src
-ninja -C out/Debug AppRTCDemo
-adb install -r out/Debug/apks/AppRTCDemo.apk
-
-In desktop chrome, navigate to https://apprtc.appspot.com and note the r=<NNN> room
-this redirects to or navigate directly to https://apprtc.appspot.com/r/<NNN> with
-your own room number. Launch AppRTC on the device and add same <NNN> into the room name list.
-
-You can also run application from a command line to connect to the first room in a list:
-adb shell am start -n org.appspot.apprtc/.ConnectActivity -a android.intent.action.VIEW
-This should result in the app launching on Android and connecting to the 3-dot-apprtc
-page displayed in the desktop browser.
-To run loopback test execute following command:
-adb shell am start -n org.appspot.apprtc/.ConnectActivity -a android.intent.action.VIEW --ez "org.appspot.apprtc.LOOPBACK" true
-